is c++ outdated, why is there no reference to it in windows virtual academy ?

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can we make websites with c++ or do we really need knowledge regarding javascrpt and HTML5 ?

Yes you could make websites with C++ however it is possibly not the best suited programming language for. Of course you need Javascript and HTML knowledge too.

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can we make apps in windows store with c++ or do we really need knowledge regarding c# and HTML5 ?

Yes, you can make application for Windows Store using C++ (see, for instance "Tutorial: Create your first Windows Store app using C++" at MSDN[^]

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can we make apps in istore with c++ or do we need knowledge regarding cocoa programming ?

As far as I know (I am not an expert), you should use Objective C.

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n iTunes-U, windows virtual academy, and many other online courses do not provide training in the feild of c++ ? why ?

I don't know. However you may find a lot of such material on the web.

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is it sooo outdated and useless ?

Nope, however it has its (in fact wide) 'scope'.

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why is it being devalued ?

Does it really happens? I don't know.

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is it still " all powerfull " or " just another programming launguage " ?

It is still one of the most powerful programming languages. It is fair complex to master, however.

The new C++ standard added some very interesting features. Now the language should be even more appealing.